Guy, please make sure that the 4GB card is compatible with 5D/ 7D.
Read thoroughly the user manual again.
If I'm not wrong, 5D/ 7D only compatible 2GB the maximum.
Guy, please make sure that the 4GB card is compatible with 5D/ 7D.
Read thoroughly the user manual again.
If I'm not wrong, 5D/ 7D only compatible 2GB the maximum.